Double loading paper pile board



F. w. sgYBoLD DOUBLE LOADING PAPER PILE BOARD Filed Nov. 30, 1935 .uw t.

Oct. 5, 1937.

Patefed oct, s, 1937 DOUBLE LOADING PAPER PILE nonno Frederick W.Seybold,lWesteld, N. J., assignor,

mesne assignments, to American Type 4 Founders, Incorporated, acorporation of New Jersey Application November 30, 1935, Serial No.52,419

9 Claims.

This invention relates to paper pile vboards for automatic paper feedersfor use withcprinting presses and the like and deals particularly withlifting and elevating mechanisms for such boards whereby a reserve pileof paper may be stacked on a second board while paper is being fed froma partially unloaded one, and said second board automatically associatedwith the elevating mechanism upon the exhaustion of the paper on theflrst board.

It is the general object of the present Iinvention therefore toprovide'novel and improved paper feed board loading and elevatin;mechanism.

An important feature of the invention resides in the provision of meansfor automatically associating a paper pile board with its liftingmechanism.

Another important feature of the invention resides in the construction'and arrangement of lifting lugs carried by lifting brackets whereby aloaded paper pile board may be automatically engaged and lifted by adownward and then upward movement of the brackets, the downward movementtaking place in the normal lowering of an empty pile board and theraising movement being performed in the operation of lifting the newpile toward position for feeding sheets from the top thereof.

Still another important feature of the invention resides in the mannerof supporting the stationary pile board for loading and in the locatingand guiding means for positioning the same accurately for cooperationwith the lifting lugs.

Other and further features and objects of the invention will be moreapparent to those skilled in the art upon a consideration of theaccompanying drawing andthe following specification wherein is discloseda single exemplary embodiment of the invention with the understandingthat such changes and modifications may be made therein as fall withinthe scope of the appended claims without departing from the spirit ofthe invention.

In said drawing:

Figure 1 is an end elevation of a double loading paper pile boardarrangement constructed according to the present invention;

Figure 2 is a side elevation thereof showing theU samemounted on theframe of a printing press;

Figure 3 is a fragmentary horizontal section taken on line 3-3 of Figure1 and-showing the arrangement of a single lifting bracket; and

Figure 4 is a fragmentary view of a locking device for maintaining thepile board in position on the rails.

Automatic sheet feeding mechanism as com-` monly employed for supplyingpaper or similar sheet material to printing presses, or other devicesfor treating the sheets individually, usually (ci. ziicm comprises aboard or table upon which the paper' is piled very carefully with all ofthe edges in alignment and mechanism to automatically elevate the boardto maintain the top sheet of the pile always at substantially the samelevel for cooperation with suitable sheet separating and feedingmechanism which removes the sheets one at a time and delivers them tothe printing press or other machine. The operation of loading the pileboard, as it-is called, is rather tedious and requires considerabletime. With the usual arrangement, after the paper is exhausted from thepile board it must be lowered then re-loaded by lhand with the requisitequantity of paper.

During this' rather prolonged operation, the machine is at rest and isof course unproductive, while during the printing operations of themachine, the operator has but little to do because of the automaticdevices which control substantially the whole printing cycle.

The present invention contemplates improved means whereby a second pileboard, directly beneath the one which is being elevated to supply paper,is arranged in a position where it can be loaded during the removal ofsheets from the first one, thus making use of the operators timeduring'the printing. When thepaper on the first board is exhausted, theelevating mechanism therefor is reversed inthe usual manner to returnthe board to its lowest position, but since a pile has already beenbuilt up beneath it, it comes to rest on top of this pile, but itslifting brackets continue their downward movements and automaticallyengage beneath the loaded pile board whereupon their direction ofmovement is again reversed and the loaded board starts to rise. Theempty board is now removed from the top 4of the paper pile and can thenlater be placed in the lowermost position for re-loading.

The invention is shown as applied to the feeder Ill of the printingpress II. 'I'his feeder includes among other parts the pair of paralleland overhanging side frame members I2 between which is journalled theshaft I3 carrying the suction feed wheels I4 of any Well-knownconstruction and driven by suitable mechanism as is common in the art.For convenience, the pile elevating mechanism is associated with theframe of the feeder III. Depending from the members I2 are the posts I5preferably integral therewith and each having a T-track I6 on its innerface for a purpose which will be later described. Near its bottom, eachpost I5 is connected by a brace I1 to the adjacent frame member of thefeeder and the enlarged junction I8 of I5 and I1 provides support forone end of the pair of transverse beams 20 suitably attached thereto.

Supported by and spaced on the beams 20 are the parallel rails 2| whichform the immediate supports for the lower paper pile board.

Such a board 2,2 of which at least two are provided is preferablysubstantially rectangular and while it is customary to formO it of wood,-it may be constructed of any suitable material. The one shown isreinforced by battens 23, the lower faces of which rest on the rails 2|as clearly seen in Figure 1. Further reinforcing the board are a pair ofangle bars 24, each having the vertical ange 25 thereof substantiallyabutting the outer edge of the adjacent hatten and with the horizontalflange 23 secured against the under face of the board very close to itsedge. The vertical flange 25 of each angle bar is of greater depth thanthe hatten and the anges of the two bars are spaced apart in respect tothe rails 2| such as to closely guide the board along these rails as itis slid into position and to prevent transverse movement thereof inrespect to the rails. The rails 2| are notched at 2| at a definiteposition near their forward ends to receive pins 21 secured on theflanges 25 to thereby positively and accurately position the board bothfore and aft while it is positioned transversely by the engagement ofthe rails and iianges 25. 'Ihis positioning brings its rear edge closeto the vertical back or piling guides 28 which are carried between theframe members l by the transverse bars 23 and no amount of vibration ofthe machines can serve to move the pile board on its rails.

Mounted to reciprocate on each T-track I6 is a pile board liftingbracket 30 comprising a, heavy central portion 3| and horizontalextensions 32 which carry arms 33 extending inwardly at right anglesthereto toward the pile board. Supported by the arms 33 is the xed shaft34, on each overhanging outer end of which is journalled a latch orlifting lug 35. Each lug includes the pile board engaging end 35extending inwardly from the shaft and the stop engaging portion 31extending outwardly from the shaft. Mounted above each portion 31 andthreaded througha lug on the bracket extension 32 is an adjustablestopscrew 40, the lower end of which is engaged by the portion 31 of thelug 35 to limit its movement under the action of the lug spring 4|connected between a pin on the portion 31 and a pin 42 near the upperpart of the bracket extension 32. 'I'he stop screws also maintain thelugs in horizontal position when their inner ends are loaded.

The two brackets are suspended each by a chain 45, the two chainsrunning over sprockets 46`on la shaft 41 rotatably mounted in the frameextensions l2 and driven by a suitable mechanism 48 for raising thebrackets automatically in response to the requirements of the feedWheels. The opposite ends 50 of the chains merely hang free as shown inFigure 2. Stops in the form of pins 52 on the T-tracks limit thedownward movement of the brackets to prevent them from being run oiF oftheir guides when the mechanism 48 is reversed to lower the brackets.Under normal conditions the bars 20 act as stops but when they areremoved for any purpose the pins 52 limit the movement of the brackets.

The latching lugs 35 are so mounted and spaced apart, While at the sametime facing toward each other from the opposite brackets, that thedistance between their ends 36 is less than the overall length of thepile board.

In order to ensure the position' of the pile board on the latching lugsin spite of the jars and vibrations incident to the operation of yheavymachinery, it is found desirable to provide interlocking means betweeneach'lug and the pile board. Suchmeans may include a vertical pin lsecured to the horizontal nange 23 of the pile board reinforcing a'ngle24 and a hole 53 for receiving the same in the face of the lug. The holeis provided with a beveled countersink to act as v a guide for the pinon entering the hole as the latch is lifted.

From the above, it will be seen that with a loaded pile board arrangedon the rails, that when the brackets are lowered by operation of themechanism 43, finally the ends 38 of the lugs will engage the uppersurface of the board and further lowering of the brackets will causetensioning of the springs 4| resulting from tilting the lugs, to andbeyond the position as shown in dotted lines in Figure 1, and finallythe lugs will be snapped back intotheir horizontal position but beneaththe bo'ard. Upon reversing thedirection of movement of the brackets, thelugs will be brought up beneath the horizontal flanges of the angle bars25 and the board and pile of paper will be lifted. It is customary tolift the pile rapidly until the top sheet approaches the feed wheel whenthe automatic feed` mechanism is thrown in.

As soon as the loaded board has been sumciently lifted from the rails, asecond board can be loaded thereon and the building of a new pilecommenced. This building can advance as rapidly-as the old board iselevated so that the new pile is ready for feeding immediately the oldone is exhausted. 'I'he board supporting the new pile is connected tothe lifting brackets by,

merely lowering them as previously described, the empty board assuming aposition on top of the pile from whence it can be removed by theoperator.

The arrangement of the lifting brackets, locking lugs and associatedparts is such as to make it an extremely strong assembly and one capableof handling the tremendous load of a large pile of paper. The supportfor the lower board is such that it is automatically and accuratelypositioned and maintained with respect to the lines of movement of thelifting lugs and also in respect to the piling guides 28 so that nospecial care is required on the part of the operator when placing it inposition.

'Ihe mechanism of the present invention is readily adapted to existingfeeders and does not require any changes in the feeding mechanism or inthe pile board lifting drive. The only changes required are in thebrackets and in the provision of the supports and rails forthe lowerboard.

Having thus described the invention, what is claimed as new and desiredto be secured by Letters Patent is:

1. In a loading device for pile elevating mechanism, in combination, aplurality of like flat, substantially rectangular tables, a stationarybottom support for one of said tables, a pair of lifting bracketsvertically reciprocable at opposite ends of said support, latching lugsextending from each bracket toward the other bracket and mounted on asingle shaft extending parallel to said bracket, the distance betweensaid lugs in normal position being less than the length of any one ofsaid tables whereby any table may rest on and be carried by the lugs,said lugs being pivoted to their respective brackets for movement abovetheir normal position whereby they may automatically fold out of the wayof a table on said bottom support and engage beneath said table when thebrackets are first lowered and then lifted.

2. In a loading device for pile elevating mechanism, in combination, aframe, a horizontal table support fixed to said frame, a plurality oflike tables, lifting brackets vertically reciprocable at opposite endsof said support and adapted to carry a loaded table to raise the pilethereon for delivery, guides for said brackets carried by said frame,latch lugs pivoted to each` bracket and extending toward the oppositeone, said lugs taking under the ends of a table to support it from thebrackets, the pivots extending parallel to the engaged edges of thetable, stops to limit the downward movement of the table engagingportions of the lugs, said portions being free to move upward to passaround the edges of a table mounted on said support when the bracketsare lowered and means to bias said lugs to table engaging position.

3. In a loading device for pile elevating mechanism, in combination, aframe, a support fixed to said frame and adapted to have a table resthorizontally thereon, a table substantially rectangular and fitted withreinforcing angle bars permanently xed beneath opposite edges thereof,guides mounted on said frame, a bracket mounted for verticalreciprocation on each guide in a path extending close to a reinforcededge of the table and multiple means on each bracket automaticallyengageable beneath the adjacent angle bar when the brackets are loweredand then raised whereby the table can be elevated by the brackets.

4. In a loading device for pile elevating mechanism, in combination, aframe, a support fixed to said frame and adaptedto have a table resthorizontally thereon, a table substantially rectangular and fitted withreinforcing angle bars beneath opposite edges thereof, guides mounted onsaid frame, a bracket mounted for vertical reciprocation on each guidein a path extending close to a reinforced edge of the table, means onsaid brackets automatically engageable beneath said angle bars when thebrackets are lowered and then raised whereby the table can be elevatedby the brackets, and means on said support engageable by said angle barsto'position the l table edges laterally in respect to said brackets.

5. In a loading device for pile elevating mechanism, in combination, aframe, a support fixed to said frame and adapted to have a table resthorizontally thereon, a. table substantially rectangular and fitted withreinforcing angle bars beneath opposite edges thereof, guides mounted onsaid frame, a bracket mounted for vertical reciprocation on each guidein a-path extending close to a reinforced edge of the table, means onsaid brackets automatically engageable beneath said angle bars when thebrackets are lowered and then raised whereby the table can be elevatedby the brackets, means on said support engageable by said angle bars toposition the table edges laterally in respect to said brackets, andcooperating means on the support and angle bars to position the tablelongitudinally.

6. In a loading device for pile elevating mechanism, the combination ofa pair of spaced side frames, a vertical guide carried by each frame, abracket reciprccable on each guide, means to raise and lower thebrackets in unison, a pair of horizontal, spaced, parallel railssupported from and between the lower ends of said frames and extendingat right angles to a plane through said guides, a paper carrying tableadapted to rest for substantially its full length on said rails, anangle bar secured under each lateral edge of the table with the verticalleg of each bar positioned by the outer edge of a corresponding rail andlatch means on each bracket to automatically pass by the lateral edgesof the table as the brackets are lowered and to then engage under theother legs of said angles as the brackets are then raised to lift thetable.

7. In a loading device for pile elevating mechanism, the combination ofa pair of spaced side frames, a vertical guide carried by each frame, abracket reciprocable on each guide, means to raise and lower thebrackets in unison, a pair of horizontal, spaced, parallel railssupported from and between the lower ends of said frames and extendingat right angles to a plane through said guides, a paper carrying tableto be slid upon and adapted to rest for substantially its full length onsaid rails, an angle bar secured under each lateral edge of the tablewith the vertical leg of each bar positioned by the outer edge of acorresponding rail, latch means on each bracket to automatically pass bythe lateral edges of the table as the brackets are lowered and to thenengage under the other legs of said angles as the brackets are thenraised to lift the table, and stop means on the vertical legs of saidangle bars to engage the said rails to x the position of the table onthe rails.

8. In a loading device for pile elevating mechanism, in combinationvertically reciprocable lifting brackets spaced apart and facing eachother, a pile supporting table adapted to t between said brackets,vertical piling guides adjacent one edge of the table, latches extendingfrom each bracket toward those on the other and adapted to engage undersaid table to support the same, a stationary support for a secondsimilar table at substantially the lower limit of movement of the saidbrackets, means slidably receiving said second table on said support,means fixing said table in respect to the said guides, means mountingsaid latches for automatically engaging the lower table when thebrackets are lowered, and

pin and socket means on the latches and board neath said angle bars whenthe brackets are lowered and then raised whereby the table can. beelevated by the brackets, means on said support engageable by said anglebars to position the table edges laterally in respect to said brackets,a notch in the top of said support and a pin extending laterally from atable angle bar engageable in said notch to positively fix the tablelongitudinally in respect to the support.

FREDERICK W. SEYBOLD.

